51968685 has 8 divisors (see below), whose sum is σ = 83149920. Its totient is φ = 27716624.

The previous prime is 51968647. The next prime is 51968701. The reversal of 51968685 is 58686915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51968685 - 2¹⁰ = 51967661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732275 + ... + 1732304.

It is an arithmetic number, because the mean of its divisors is an integer number (10393740).

Almost surely, 2^51968685 is an apocalyptic number.

It is an amenable number.

51968685 is a deficient number, since it is larger than the sum of its proper divisors (31181235).

51968685 is a wasteful number, since it uses less digits than its factorization.

51968685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464587.

The product of its digits is 518400, while the sum is 48.

The square root of 51968685 is about 7208.9309193527. The cubic root of 51968685 is about 373.1761752602.

The spelling of 51968685 in words is "fifty-one million, nine hundred sixty-eight thousand, six hundred eighty-five".